Description And Operation: Overview: Notes
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The accessory drive is a belt system powered by a pulley attached to the front of the crankshaft. The crankshaft pulley, which incorporates a torsional vibration damper, drives primary and secondary drive belts. A belt tensioner is incorporated into each belt run to maintain the drive belts at the correct tension. Together with idler pulleys, the belt tensioners also guide the drive belts clear of obstructions and set the correct 'wraparound' of the accessory component drive pulleys to ensure a slip-free drive.